What Is the 140NOE77110C?
The 140NOE77110C is an Ethernet communication module from Schneider Electric’s Modicon Quantum series. It gives Quantum racks a direct Ethernet Modbus TCP/IP connection, so controllers and supervisory systems can exchange data over a standard industrial network instead of legacy links. The module carries a Class C20 web server under the Transparent Ready concept, which means integrated systems can reach it through a browser-based interface.
If you run a Quantum-based line and need network capability without a full platform change, this module is the practical answer. It slots into the rack and draws its supply from the rack power supply, so no separate feed is required.
Key Parameters at a Glance
| Specification | Value |
|---|---|
| Product type | Ethernet module |
| Product line | Modicon Quantum |
| Communication port protocol | Ethernet Modbus TCP/IP |
| Transmission rate | 10/100 Mbit/s |
| Current consumption | 750 mA at 5 V DC |
| Supply | Via the power supply of the rack |
| Web server | Class C20, Transparent Ready |
| Protection class | IP20 |
| Ambient temperature | 0 to 60 °C |
| Humidity | 95 % without condensation |
| Marking | CE |
| Certifications | UL 508, cUL |
| Format | Standard |
| EAN | 3595862004008 |
The 10/100 Mbit/s rate covers both older 10 Mbit segments and modern 100 Mbit switches, so the module fits mixed network environments. At 750 mA on the 5 V DC rail, the load on the rack supply stays modest and predictable.
Where It Fits in Your Plant
Oil and gas operators often keep Quantum racks running for years because the process logic works. The weak point is usually connectivity. The 140NOE77110C closes that gap in three common situations:
- Tank farm and pipeline monitoring — Modbus TCP/IP lets flow, level and pressure data reach a SCADA host without adding protocol converters.
- Water and wastewater treatment — the Class C20 web server supports remote diagnostics, so technicians can check module status before travelling to site.
- Discrete manufacturing cells — 10/100 Mbit/s handles controller-to-controller traffic and HMI updates on the same network.
In each case the module extends the life of existing Quantum hardware rather than forcing a platform migration.
Installation and Integration Notes
Mounting follows the standard Quantum rack procedure: seat the module in its slot and confirm it is fully engaged. Power comes from the rack supply, so check that the 5 V DC budget has headroom for the 750 mA draw before commissioning.
Network wiring into a Modbus TCP/IP segment may require an external gateway or connection module depending on your architecture. Confirm cables, switches and any gateway hardware with your supplier before you order.
Environmental limits matter. Keep the enclosure within 0 to 60 °C and avoid condensation; the IP20 rating protects against solid objects above 12 mm but not against water. Plan cabinet ventilation accordingly.
Maintenance and Reliability
Inspection should be periodic and general: verify module seating, check status indicators, and confirm cabinet temperature and humidity stay inside the rated window. Follow the manufacturer’s safety manual for all work on the rack. Because the module has no moving parts, most failures trace back to power budget issues, loose connections or heat. A simple annual check of these three points protects uptime.
Buyer’s Checklist
Before you commit, confirm the following:
- Your rack is a Modicon Quantum system with a free slot.
- Your network uses Ethernet Modbus TCP/IP.
- The 5 V DC supply has capacity for 750 mA.
- Your cabinet maintains 0 to 60 °C and stays condensation-free.
- You have the right cables and any gateway needed for your topology.
Please verify current lifecycle status and availability with Oil AutoTech before ordering. For spares when you need them, fast dispatch, worldwide, contact Oil AutoTech today for pricing and availability.
